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e-lub [12.9K]
3 years ago
15

What is the value of z in the equation 2(4z − 3 − 1) = 166 − 46?

Mathematics
2 answers:
shepuryov [24]3 years ago
8 0

Refine 2(4z-3-1)

= 2(4z-4)

Refine : 166 - 16 = 120

therefore:

2(z-4) = 120

Divide both sides by  2 :

\frac{2(z-4)}{2} =  \frac{120}{2}

4z-4 = 60

add 4  to both sides:

4z-4+4 = 60+4

4z = 64

Divide both sides by 4 :

\frac{4z}{4} =  \frac{64}{4}

z = 16

hope this helps!


jolli1 [7]3 years ago
4 0
Solutions 

1) Simplify 4z−3−1 to <span>4z−4

</span><span>2(4z−4)=166−46

2) </span>Simplify 166−46 to <span>120

</span><span>2(4z−4)=120

3) </span>Divide the equation from both sides by <span>2

</span><span>4z−4=120 </span>÷ <span>2

4) </span>Simplify 120 ÷ 2 to <span>60

</span><span>4z−4=60

5) </span> Add 4 <span>to both sides

</span><span>4z=60+4

6) </span>Simplify 60+4 to <span>64

</span><span>4z=64

7) </span>Divide both sides by 4<span>z=64 </span>÷ <span>4

8) </span>Simplify <span>64 </span><span>÷ 4</span><span> </span><span>to</span><span> </span><span>16

</span><span><span>z=16


</span></span>
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